What Is Bird Flu?

What Is Bird Flu? Symptoms, Causes, Diagnosis, Treatment, and Prevention

Rarely seen in the United States, bird flu is a type of influenza that can be passed from birds to humans. Bird flu, or avian flu, is a contagious viral disease that mainly affects birds. Most bird flu viruses do not infect humans, but some strains – especially H5N1 and H7N9 – can cause severe …

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